xref: /linux/drivers/tty/serial/Kconfig (revision 4b132aacb0768ac1e652cf517097ea6f237214b9)
1# SPDX-License-Identifier: GPL-2.0
2#
3# Serial device configuration
4#
5
6menu "Serial drivers"
7	depends on HAS_IOMEM
8
9config SERIAL_EARLYCON
10	bool
11	depends on SERIAL_CORE
12	help
13	  Support for early consoles with the earlycon parameter. This enables
14	  the console before standard serial driver is probed. The console is
15	  enabled when early_param is processed.
16
17source "drivers/tty/serial/8250/Kconfig"
18
19comment "Non-8250 serial port support"
20
21config SERIAL_AMBA_PL010
22	tristate "ARM AMBA PL010 serial port support"
23	depends on ARM_AMBA || COMPILE_TEST
24	select SERIAL_CORE
25	help
26	  This selects the ARM(R) AMBA(R) PrimeCell PL010 UART.  If you have
27	  an Integrator/AP or Integrator/PP2 platform, or if you have a
28	  Cirrus Logic EP93xx CPU, say Y or M here.
29
30	  If unsure, say N.
31
32config SERIAL_AMBA_PL010_CONSOLE
33	bool "Support for console on AMBA serial port"
34	depends on SERIAL_AMBA_PL010=y
35	select SERIAL_CORE_CONSOLE
36	help
37	  Say Y here if you wish to use an AMBA PrimeCell UART as the system
38	  console (the system console is the device which receives all kernel
39	  messages and warnings and which allows logins in single user mode).
40
41	  Even if you say Y here, the currently visible framebuffer console
42	  (/dev/tty0) will still be used as the system console by default, but
43	  you can alter that using a kernel command line option such as
44	  "console=ttyAM0". (Try "man bootparam" or see the documentation of
45	  your boot loader (lilo or loadlin) about how to pass options to the
46	  kernel at boot time.)
47
48config SERIAL_AMBA_PL011
49	tristate "ARM AMBA PL011 serial port support"
50	depends on ARM_AMBA
51	select SERIAL_CORE
52	help
53	  This selects the ARM(R) AMBA(R) PrimeCell PL011 UART.  If you have
54	  an Integrator/PP2, Integrator/CP or Versatile platform, say Y or M
55	  here.
56
57	  If unsure, say N.
58
59config SERIAL_AMBA_PL011_CONSOLE
60	bool "Support for console on AMBA serial port"
61	depends on SERIAL_AMBA_PL011=y
62	select SERIAL_CORE_CONSOLE
63	select SERIAL_EARLYCON
64	help
65	  Say Y here if you wish to use an AMBA PrimeCell UART as the system
66	  console (the system console is the device which receives all kernel
67	  messages and warnings and which allows logins in single user mode).
68
69	  Even if you say Y here, the currently visible framebuffer console
70	  (/dev/tty0) will still be used as the system console by default, but
71	  you can alter that using a kernel command line option such as
72	  "console=ttyAMA0". (Try "man bootparam" or see the documentation of
73	  your boot loader (lilo or loadlin) about how to pass options to the
74	  kernel at boot time.)
75
76config SERIAL_EARLYCON_SEMIHOST
77	bool "Early console using Arm compatible semihosting"
78	depends on ARM64 || ARM || RISCV
79	select SERIAL_CORE
80	select SERIAL_CORE_CONSOLE
81	select SERIAL_EARLYCON
82	help
83	  Support for early debug console using Arm compatible semihosting.
84	  This enables the console before standard serial driver is probed.
85	  This is enabled with "earlycon=smh" on the kernel command line.
86	  The console is enabled when early_param is processed.
87
88config SERIAL_EARLYCON_RISCV_SBI
89	bool "Early console using RISC-V SBI"
90	depends on RISCV_SBI
91	select SERIAL_CORE
92	select SERIAL_CORE_CONSOLE
93	select SERIAL_EARLYCON
94	help
95	  Support for early debug console using RISC-V SBI. This enables
96	  the console before standard serial driver is probed. This is enabled
97	  with "earlycon=sbi" on the kernel command line. The console is
98	  enabled when early_param is processed.
99
100config SERIAL_SB1250_DUART
101	tristate "BCM1xxx on-chip DUART serial support"
102	depends on SIBYTE_SB1xxx_SOC=y
103	select SERIAL_CORE
104	default y
105	help
106	  Support for the asynchronous serial interface (DUART) included in
107	  the BCM1250 and derived System-On-a-Chip (SOC) devices.  Note that
108	  the letter D in DUART stands for "dual", which is how the device
109	  is implemented.  Depending on the SOC configuration there may be
110	  one or more DUARTs available of which all are handled.
111
112	  If unsure, say Y.  To compile this driver as a module, choose M here:
113	  the module will be called sb1250-duart.
114
115config SERIAL_SB1250_DUART_CONSOLE
116	bool "Support for console on a BCM1xxx DUART serial port"
117	depends on SERIAL_SB1250_DUART=y
118	select SERIAL_CORE_CONSOLE
119	default y
120	help
121	  If you say Y here, it will be possible to use a serial port as the
122	  system console (the system console is the device which receives all
123	  kernel messages and warnings and which allows logins in single user
124	  mode).
125
126	  If unsure, say Y.
127
128config SERIAL_ATMEL
129	bool "AT91 on-chip serial port support"
130	depends on COMMON_CLK
131	depends on ARCH_AT91 || COMPILE_TEST
132	select SERIAL_CORE
133	select SERIAL_MCTRL_GPIO if GPIOLIB
134	select MFD_AT91_USART
135	help
136	  This enables the driver for the on-chip UARTs of the Atmel
137	  AT91 processors.
138
139config SERIAL_ATMEL_CONSOLE
140	bool "Support for console on AT91 serial port"
141	depends on SERIAL_ATMEL=y
142	select SERIAL_CORE_CONSOLE
143	select SERIAL_EARLYCON
144	help
145	  Say Y here if you wish to use an on-chip UART on a Atmel
146	  AT91 processor as the system console (the system
147	  console is the device which receives all kernel messages and
148	  warnings and which allows logins in single user mode).
149
150config SERIAL_ATMEL_PDC
151	bool "Support DMA transfers on AT91 serial port"
152	depends on SERIAL_ATMEL
153	default y
154	help
155	  Say Y here if you wish to use the PDC to do DMA transfers to
156	  and from the Atmel AT91 serial port. In order to
157	  actually use DMA transfers, make sure that the use_dma_tx
158	  and use_dma_rx members in the atmel_uart_data struct is set
159	  appropriately for each port.
160
161	  Note that break and error handling currently doesn't work
162	  properly when DMA is enabled. Make sure that ports where
163	  this matters don't use DMA.
164
165config SERIAL_ATMEL_TTYAT
166	bool "Install as device ttyATn instead of ttySn"
167	depends on SERIAL_ATMEL=y
168	help
169	  Say Y here if you wish to have the internal AT91 UARTs
170	  appear as /dev/ttyATn (major 204, minor starting at 154)
171	  instead of the normal /dev/ttySn (major 4, minor starting at
172	  64). This is necessary if you also want other UARTs, such as
173	  external 8250/16C550 compatible UARTs.
174	  The ttySn nodes are legally reserved for the 8250 serial driver
175	  but are often misused by other serial drivers.
176
177	  To use this, you should create suitable ttyATn device nodes in
178	  /dev/, and pass "console=ttyATn" to the kernel.
179
180	  Say Y if you have an external 8250/16C550 UART.  If unsure, say N.
181
182config SERIAL_KGDB_NMI
183	bool "Serial console over KGDB NMI debugger port"
184	depends on KGDB_SERIAL_CONSOLE
185	help
186	  This special driver allows you to temporary use NMI debugger port
187	  as a normal console (assuming that the port is attached to KGDB).
188
189	  Unlike KDB's disable_nmi command, with this driver you are always
190	  able to go back to the debugger using KGDB escape sequence ($3#33).
191	  This is because this console driver processes the input in NMI
192	  context, and thus is able to intercept the magic sequence.
193
194	  Note that since the console interprets input and uses polling
195	  communication methods, for things like PPP you still must fully
196	  detach debugger port from the KGDB NMI (i.e. disable_nmi), and
197	  use raw console.
198
199	  If unsure, say N.
200
201config SERIAL_MESON
202	tristate "Meson serial port support"
203	depends on ARCH_MESON || COMPILE_TEST
204	select SERIAL_CORE
205	help
206	  This enables the driver for the on-chip UARTs of the Amlogic
207	  MesonX processors.
208
209config SERIAL_MESON_CONSOLE
210	bool "Support for console on meson"
211	depends on SERIAL_MESON
212	select SERIAL_CORE_CONSOLE
213	select SERIAL_EARLYCON
214	help
215	  Say Y here if you wish to use a Amlogic MesonX UART as the
216	  system console (the system console is the device which
217	  receives all kernel messages and warnings and which allows
218	  logins in single user mode) as /dev/ttyAMLx.
219
220config SERIAL_CLPS711X
221	tristate "CLPS711X serial port support"
222	depends on ARCH_CLPS711X || COMPILE_TEST
223	select SERIAL_CORE
224	select SERIAL_MCTRL_GPIO if GPIOLIB
225	help
226	  This enables the driver for the on-chip UARTs of the Cirrus
227	  Logic EP711x/EP721x/EP731x processors.
228
229config SERIAL_CLPS711X_CONSOLE
230	bool "Support for console on CLPS711X serial port"
231	depends on SERIAL_CLPS711X=y
232	select SERIAL_CORE_CONSOLE
233	help
234	  Even if you say Y here, the currently visible virtual console
235	  (/dev/tty0) will still be used as the system console by default, but
236	  you can alter that using a kernel command line option such as
237	  "console=ttyCL1".
238
239config SERIAL_SAMSUNG
240	tristate "Samsung SoC serial support"
241	depends on PLAT_SAMSUNG || ARCH_S5PV210 || ARCH_EXYNOS || ARCH_APPLE || ARCH_ARTPEC || COMPILE_TEST
242	select SERIAL_CORE
243	help
244	  Support for the on-chip UARTs on the Samsung
245	  S3C64xx/S5Pv210/Exynos and Apple M1 SoCs, providing
246	  /dev/ttySAC0, 1 and 2 (note, some machines may not provide all of
247	  these ports, depending on how the serial port pins are configured.
248
249	  Choose Y/M here only if you build for such SoC.
250
251config SERIAL_SAMSUNG_UARTS
252	int
253	depends on SERIAL_SAMSUNG
254	default 4
255	help
256	  Select the number of available UART ports for the Samsung S3C
257	  serial driver
258
259config SERIAL_SAMSUNG_CONSOLE
260	bool "Support for console on Samsung SoC serial port"
261	depends on SERIAL_SAMSUNG
262	select SERIAL_CORE_CONSOLE
263	select SERIAL_EARLYCON
264	help
265	  Allow selection of the S3C24XX on-board serial ports for use as
266	  an virtual console.
267
268	  Even if you say Y here, the currently visible virtual console
269	  (/dev/tty0) will still be used as the system console by default, but
270	  you can alter that using a kernel command line option such as
271	  "console=ttySACx". (Try "man bootparam" or see the documentation of
272	  your boot loader about how to pass options to the kernel at
273	  boot time.)
274
275config SERIAL_TEGRA
276	tristate "NVIDIA Tegra20/30 SoC serial controller"
277	depends on (ARCH_TEGRA && TEGRA20_APB_DMA) || COMPILE_TEST
278	select SERIAL_CORE
279	help
280	  Support for the on-chip UARTs on the NVIDIA Tegra series SOCs
281	  providing /dev/ttyTHS0, 1, 2, 3 and 4 (note, some machines may not
282	  provide all of these ports, depending on how the serial port
283	  are enabled). This driver uses the APB DMA to achieve higher baudrate
284	  and better performance.
285
286config SERIAL_TEGRA_TCU
287	tristate "NVIDIA Tegra Combined UART"
288	depends on MAILBOX
289	depends on (ARCH_TEGRA && TEGRA_HSP_MBOX) || COMPILE_TEST
290	select SERIAL_CORE
291	help
292	  Support for the mailbox-based TCU (Tegra Combined UART) serial port.
293	  TCU is a virtual serial port that allows multiplexing multiple data
294	  streams into a single hardware serial port.
295
296config SERIAL_TEGRA_TCU_CONSOLE
297	bool "Support for console on a Tegra TCU serial port"
298	depends on SERIAL_TEGRA_TCU=y
299	select SERIAL_CORE_CONSOLE
300	default y
301	help
302	  If you say Y here, it will be possible to use a the Tegra TCU as the
303	  system console (the system console is the device which receives all
304	  kernel messages and warnings and which allows logins in single user
305	  mode).
306
307	  If unsure, say Y.
308
309config SERIAL_MAX3100
310	tristate "MAX3100/3110/3111/3222 support"
311	depends on SPI
312	select SERIAL_CORE
313	help
314	  This selects support for an advanced UART from Maxim.
315	  Supported ICs are MAX3100, MAX3110, MAX3111, MAX3222.
316
317	  Say Y here if you want to support these ICs.
318
319config SERIAL_MAX310X
320	tristate "MAX310X support"
321	depends on SPI_MASTER
322	select SERIAL_CORE
323	select REGMAP_SPI if SPI_MASTER
324	select REGMAP_I2C if I2C
325	help
326	  This selects support for an advanced UART from Maxim (Dallas).
327	  Supported ICs are MAX3107, MAX3108, MAX3109, MAX14830.
328	  Each IC contains 128 words each of receive and transmit FIFO
329	  that can be controlled through I2C or high-speed SPI.
330
331	  Say Y here if you want to support this ICs.
332
333config SERIAL_DZ
334	bool "DECstation DZ serial driver"
335	depends on MACH_DECSTATION && 32BIT
336	select SERIAL_CORE
337	default y
338	help
339	  DZ11-family serial controllers for DECstations and VAXstations,
340	  including the DC7085, M7814, and M7819.
341
342config SERIAL_DZ_CONSOLE
343	bool "Support console on DECstation DZ serial driver"
344	depends on SERIAL_DZ=y
345	select SERIAL_CORE_CONSOLE
346	default y
347	help
348	  If you say Y here, it will be possible to use a serial port as the
349	  system console (the system console is the device which receives all
350	  kernel messages and warnings and which allows logins in single user
351	  mode).
352
353	  Note that the firmware uses ttyS3 as the serial console on
354	  DECstations that use this driver.
355
356	  If unsure, say Y.
357
358config SERIAL_ZS
359	tristate "DECstation Z85C30 serial support"
360	depends on MACH_DECSTATION
361	select SERIAL_CORE
362	default y
363	help
364	  Support for the Zilog 85C350 serial communications controller used
365	  for serial ports in newer DECstation systems.  These include the
366	  DECsystem 5900 and all models of the DECstation and DECsystem 5000
367	  systems except from model 200.
368
369	  If unsure, say Y.  To compile this driver as a module, choose M here:
370	  the module will be called zs.
371
372config SERIAL_ZS_CONSOLE
373	bool "Support for console on a DECstation Z85C30 serial port"
374	depends on SERIAL_ZS=y
375	select SERIAL_CORE_CONSOLE
376	default y
377	help
378	  If you say Y here, it will be possible to use a serial port as the
379	  system console (the system console is the device which receives all
380	  kernel messages and warnings and which allows logins in single user
381	  mode).
382
383	  Note that the firmware uses ttyS1 as the serial console on the
384	  Maxine and ttyS3 on the others using this driver.
385
386	  If unsure, say Y.
387
388config SERIAL_21285
389	tristate "DC21285 serial port support"
390	depends on FOOTBRIDGE
391	select SERIAL_CORE
392	help
393	  If you have a machine based on a 21285 (Footbridge) StrongARM(R)/
394	  PCI bridge you can enable its onboard serial port by enabling this
395	  option.
396
397config SERIAL_21285_CONSOLE
398	bool "Console on DC21285 serial port"
399	depends on SERIAL_21285=y
400	select SERIAL_CORE_CONSOLE
401	help
402	  If you have enabled the serial port on the 21285 footbridge you can
403	  make it the console by answering Y to this option.
404
405	  Even if you say Y here, the currently visible virtual console
406	  (/dev/tty0) will still be used as the system console by default, but
407	  you can alter that using a kernel command line option such as
408	  "console=ttyFB". (Try "man bootparam" or see the documentation of
409	  your boot loader (lilo or loadlin) about how to pass options to the
410	  kernel at boot time.)
411
412config SERIAL_PXA
413	bool "PXA serial port support (DEPRECATED)"
414	depends on ARCH_PXA || ARCH_MMP
415	select SERIAL_CORE
416	select SERIAL_8250_PXA if SERIAL_8250=y
417	select SERIAL_PXA_NON8250 if !SERIAL_8250=y
418	help
419	  If you have a machine based on an Intel XScale PXA2xx CPU you
420	  can enable its onboard serial ports by enabling this option.
421
422	  Unless you have a specific need, you should use SERIAL_8250_PXA
423	  instead of this.
424
425config SERIAL_PXA_NON8250
426	bool
427	depends on !SERIAL_8250 || COMPILE_TEST
428
429config SERIAL_PXA_CONSOLE
430	bool "Console on PXA serial port (DEPRECATED)"
431	depends on SERIAL_PXA
432	select SERIAL_CORE_CONSOLE
433	select SERIAL_8250_CONSOLE if SERIAL_8250=y
434	help
435	  If you have enabled the serial port on the Intel XScale PXA
436	  CPU you can make it the console by answering Y to this option.
437
438	  Even if you say Y here, the currently visible virtual console
439	  (/dev/tty0) will still be used as the system console by default, but
440	  you can alter that using a kernel command line option such as
441	  "console=ttySA0". (Try "man bootparam" or see the documentation of
442	  your boot loader (lilo or loadlin) about how to pass options to the
443	  kernel at boot time.)
444
445	  Unless you have a specific need, you should use SERIAL_8250_PXA
446	  and SERIAL_8250_CONSOLE instead of this.
447
448config SERIAL_SA1100
449	bool "SA1100 serial port support"
450	depends on ARCH_SA1100
451	select SERIAL_CORE
452	select SERIAL_MCTRL_GPIO if GPIOLIB
453	help
454	  If you have a machine based on a SA1100/SA1110 StrongARM(R) CPU you
455	  can enable its onboard serial port by enabling this option.
456	  Please read <file:Documentation/arch/arm/sa1100/serial_uart.rst> for
457	  further info.
458
459config SERIAL_SA1100_CONSOLE
460	bool "Console on SA1100 serial port"
461	depends on SERIAL_SA1100
462	select SERIAL_CORE_CONSOLE
463	help
464	  If you have enabled the serial port on the SA1100/SA1110 StrongARM
465	  CPU you can make it the console by answering Y to this option.
466
467	  Even if you say Y here, the currently visible virtual console
468	  (/dev/tty0) will still be used as the system console by default, but
469	  you can alter that using a kernel command line option such as
470	  "console=ttySA0". (Try "man bootparam" or see the documentation of
471	  your boot loader (lilo or loadlin) about how to pass options to the
472	  kernel at boot time.)
473
474config SERIAL_IMX
475	tristate "IMX serial port support"
476	depends on ARCH_MXC || COMPILE_TEST
477	select SERIAL_CORE
478	select RATIONAL
479	select SERIAL_MCTRL_GPIO if GPIOLIB
480	help
481	  If you have a machine based on a Motorola IMX CPU you
482	  can enable its onboard serial port by enabling this option.
483
484config SERIAL_IMX_CONSOLE
485	tristate "Console on IMX serial port"
486	depends on SERIAL_IMX
487	select SERIAL_CORE_CONSOLE
488	help
489	  If you have enabled the serial port on the Freescale IMX
490	  CPU you can make it the console by answering Y/M to this option.
491
492	  Even if you say Y/M here, the currently visible virtual console
493	  (/dev/tty0) will still be used as the system console by default, but
494	  you can alter that using a kernel command line option such as
495	  "console=ttymxc0". (Try "man bootparam" or see the documentation of
496	  your bootloader about how to pass options to the kernel at boot time.)
497
498config SERIAL_IMX_EARLYCON
499	bool "Earlycon on IMX serial port"
500	depends on ARCH_MXC || COMPILE_TEST
501	depends on OF
502	select SERIAL_CORE
503	select SERIAL_EARLYCON
504	select SERIAL_CORE_CONSOLE
505	default y if SERIAL_IMX_CONSOLE
506	help
507	  If you have enabled the earlycon on the Freescale IMX
508	  CPU you can make it the earlycon by answering Y to this option.
509
510config SERIAL_UARTLITE
511	tristate "Xilinx uartlite serial port support"
512	depends on HAS_IOMEM
513	select SERIAL_CORE
514	help
515	  Say Y here if you want to use the Xilinx uartlite serial controller.
516
517	  To compile this driver as a module, choose M here: the
518	  module will be called uartlite.
519
520config SERIAL_UARTLITE_CONSOLE
521	bool "Support for console on Xilinx uartlite serial port"
522	depends on SERIAL_UARTLITE=y
523	select SERIAL_CORE_CONSOLE
524	select SERIAL_EARLYCON
525	help
526	  Say Y here if you wish to use a Xilinx uartlite as the system
527	  console (the system console is the device which receives all kernel
528	  messages and warnings and which allows logins in single user mode).
529
530config SERIAL_UARTLITE_NR_UARTS
531	int "Maximum number of uartlite serial ports"
532	depends on SERIAL_UARTLITE
533	range 1 256
534	default 1
535	help
536	  Set this to the number of uartlites in your system, or the number
537	  you think you might implement.
538	  If maximum number of uartlite serial ports is more than 4, then the
539	  driver uses dynamic allocation instead of static allocation for major
540	  number.
541
542config SERIAL_SUNCORE
543	bool
544	depends on SPARC
545	select SERIAL_CORE
546	select SERIAL_CORE_CONSOLE
547	default y
548
549config SERIAL_SUNZILOG
550	tristate "Sun Zilog8530 serial support"
551	depends on SPARC
552	help
553	  This driver supports the Zilog8530 serial ports found on many Sparc
554	  systems.  Say Y or M if you want to be able to these serial ports.
555
556config SERIAL_SUNZILOG_CONSOLE
557	bool "Console on Sun Zilog8530 serial port"
558	depends on SERIAL_SUNZILOG=y
559	help
560	  If you would like to be able to use the Zilog8530 serial port
561	  on your Sparc system as the console, you can do so by answering
562	  Y to this option.
563
564config SERIAL_SUNSU
565	tristate "Sun SU serial support"
566	depends on SPARC && PCI
567	help
568	  This driver supports the 8250 serial ports that run the keyboard and
569	  mouse on (PCI) UltraSPARC systems.  Say Y or M if you want to be able
570	  to these serial ports.
571
572config SERIAL_SUNSU_CONSOLE
573	bool "Console on Sun SU serial port"
574	depends on SERIAL_SUNSU=y
575	help
576	  If you would like to be able to use the SU serial port
577	  on your Sparc system as the console, you can do so by answering
578	  Y to this option.
579
580config SERIAL_MUX
581	tristate "Serial MUX support"
582	depends on GSC
583	select SERIAL_CORE
584	default y
585	help
586	  Saying Y here will enable the hardware MUX serial driver for
587	  the Nova, K class systems and D class with a 'remote control card'.
588	  The hardware MUX is not 8250/16550 compatible therefore the
589	  /dev/ttyB0 device is shared between the Serial MUX and the PDC
590	  software console. The following steps need to be completed to use
591	  the Serial MUX:
592
593	    1. create the device entry (mknod /dev/ttyB0 c 11 0)
594	    2. Edit the /etc/inittab to start a getty listening on /dev/ttyB0
595	    3. Add device ttyB0 to /etc/securetty (if you want to log on as
596		 root on this console.)
597	    4. Change the kernel command console parameter to: console=ttyB0
598
599config SERIAL_MUX_CONSOLE
600	bool "Support for console on serial MUX"
601	depends on SERIAL_MUX=y
602	select SERIAL_CORE_CONSOLE
603	default y
604
605config SERIAL_SUNSAB
606	tristate "Sun Siemens SAB82532 serial support"
607	depends on SPARC && PCI
608	help
609	  This driver supports the Siemens SAB82532 DUSCC serial ports on newer
610	  (PCI) UltraSPARC systems.  Say Y or M if you want to be able to these
611	  serial ports.
612
613config SERIAL_SUNSAB_CONSOLE
614	bool "Console on Sun Siemens SAB82532 serial port"
615	depends on SERIAL_SUNSAB=y
616	help
617	  If you would like to be able to use the SAB82532 serial port
618	  on your Sparc system as the console, you can do so by answering
619	  Y to this option.
620
621config SERIAL_SUNHV
622	bool "Sun4v Hypervisor Console support"
623	depends on SPARC64
624	help
625	  This driver supports the console device found on SUN4V Sparc
626	  systems.  Say Y if you want to be able to use this device.
627
628config SERIAL_IP22_ZILOG
629	tristate "SGI Zilog8530 serial support"
630	depends on SGI_HAS_ZILOG
631	select SERIAL_CORE
632	help
633	  This driver supports the Zilog8530 serial ports found on SGI
634	  systems.  Say Y or M if you want to be able to these serial ports.
635
636config SERIAL_IP22_ZILOG_CONSOLE
637	bool "Console on SGI Zilog8530 serial port"
638	depends on SERIAL_IP22_ZILOG=y
639	select SERIAL_CORE_CONSOLE
640
641config SERIAL_SH_SCI
642	tristate "SuperH SCI(F) serial port support"
643	depends on SUPERH || ARCH_RENESAS || COMPILE_TEST
644	select SERIAL_CORE
645	select SERIAL_MCTRL_GPIO if GPIOLIB
646
647config SERIAL_SH_SCI_NR_UARTS
648	int "Maximum number of SCI(F) serial ports" if EXPERT
649	range 1 64 if 64BIT
650	range 1 32 if !64BIT
651	depends on SERIAL_SH_SCI
652	default "10" if SUPERH
653	default "18" if ARCH_RENESAS
654	default "2"
655
656config SERIAL_SH_SCI_CONSOLE
657	bool "Support for console on SuperH SCI(F)" if EXPERT
658	depends on SERIAL_SH_SCI=y
659	select SERIAL_CORE_CONSOLE
660	default y
661
662config SERIAL_SH_SCI_EARLYCON
663	bool "Support for early console on SuperH SCI(F)" if EXPERT
664	depends on SERIAL_SH_SCI=y
665	select SERIAL_CORE_CONSOLE
666	select SERIAL_EARLYCON
667	default ARCH_RENESAS
668
669config SERIAL_SH_SCI_DMA
670	bool "DMA support" if EXPERT
671	depends on SERIAL_SH_SCI && DMA_ENGINE
672	default ARCH_RENESAS
673
674config SERIAL_HS_LPC32XX
675	tristate "LPC32XX high speed serial port support"
676	depends on ARCH_LPC32XX || COMPILE_TEST
677	depends on OF
678	select SERIAL_CORE
679	help
680	  Support for the LPC32XX high speed serial ports (up to 900kbps).
681	  Those are UARTs completely different from the Standard UARTs on the
682	  LPC32XX SoC.
683	  Choose M or Y here to build this driver.
684
685config SERIAL_HS_LPC32XX_CONSOLE
686	bool "Enable LPC32XX high speed UART serial console"
687	depends on SERIAL_HS_LPC32XX=y
688	select SERIAL_CORE_CONSOLE
689	help
690	  If you would like to be able to use one of the high speed serial
691	  ports on the LPC32XX as the console, you can do so by answering
692	  Y to this option.
693
694config SERIAL_CORE
695	tristate
696
697config SERIAL_CORE_CONSOLE
698	bool
699
700config CONSOLE_POLL
701	bool
702
703config SERIAL_MCF
704	bool "Coldfire serial support"
705	depends on COLDFIRE
706	select SERIAL_CORE
707	help
708	  This serial driver supports the Freescale Coldfire serial ports.
709
710config SERIAL_MCF_BAUDRATE
711	int "Default baudrate for Coldfire serial ports"
712	depends on SERIAL_MCF
713	default 19200
714	help
715	  This setting lets you define what the default baudrate is for the
716	  ColdFire serial ports. The usual default varies from board to board,
717	  and this setting is a way of catering for that.
718
719config SERIAL_MCF_CONSOLE
720	bool "Coldfire serial console support"
721	depends on SERIAL_MCF
722	select SERIAL_CORE_CONSOLE
723	help
724	  Enable a ColdFire internal serial port to be the system console.
725
726config SERIAL_PMACZILOG
727	tristate "Mac or PowerMac z85c30 ESCC support"
728	depends on (M68K && MAC) || PPC_PMAC
729	select SERIAL_CORE
730	help
731	  This driver supports the Zilog z85C30 serial ports found on
732	  (Power)Mac machines.
733	  Say Y or M if you want to be able to these serial ports.
734
735config SERIAL_PMACZILOG_TTYS
736	bool "Use ttySn device nodes for Zilog z85c30"
737	depends on SERIAL_PMACZILOG
738	help
739	  The pmac_zilog driver for the z85C30 chip on many powermacs
740	  historically used the device numbers for /dev/ttySn.  The
741	  8250 serial port driver also uses these numbers, which means
742	  the two drivers being unable to coexist; you could not use
743	  both z85C30 and 8250 type ports at the same time.
744
745	  If this option is not selected, the pmac_zilog driver will
746	  use the device numbers allocated for /dev/ttyPZn.  This allows
747	  the pmac_zilog and 8250 drivers to co-exist, but may cause
748	  existing userspace setups to break.  Programs that need to
749	  access the built-in serial ports on powermacs will need to
750	  be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
751
752	  If you enable this option, any z85c30 ports in the system will
753	  be registered as ttyS0 onwards as in the past, and you will be
754	  unable to use the 8250 module for PCMCIA or other 16C550-style
755	  UARTs.
756
757	  Say N unless you need the z85c30 ports on your (Power)Mac
758	  to appear as /dev/ttySn.
759
760config SERIAL_PMACZILOG_CONSOLE
761	bool "Console on Mac or PowerMac z85c30 serial port"
762	depends on SERIAL_PMACZILOG=y
763	select SERIAL_CORE_CONSOLE
764	help
765	  If you would like to be able to use the z85c30 serial port
766	  on your (Power)Mac as the console, you can do so by answering
767	  Y to this option.
768
769config SERIAL_CPM
770	tristate "CPM SCC/SMC serial port support"
771	depends on CPM2 || CPM1
772	select SERIAL_CORE
773	help
774	  This driver supports the SCC and SMC serial ports on Motorola
775	  embedded PowerPC that contain a CPM1 (8xx) or CPM2 (8xxx)
776
777config SERIAL_CPM_CONSOLE
778	bool "Support for console on CPM SCC/SMC serial port"
779	depends on SERIAL_CPM=y
780	select SERIAL_CORE_CONSOLE
781	help
782	  Say Y here if you wish to use a SCC or SMC CPM UART as the system
783	  console (the system console is the device which receives all kernel
784	  messages and warnings and which allows logins in single user mode).
785
786	  Even if you say Y here, the currently visible framebuffer console
787	  (/dev/tty0) will still be used as the system console by default, but
788	  you can alter that using a kernel command line option such as
789	  "console=ttyCPM0". (Try "man bootparam" or see the documentation of
790	  your boot loader (lilo or loadlin) about how to pass options to the
791	  kernel at boot time.)
792
793config SERIAL_PIC32
794	tristate "Microchip PIC32 serial support"
795	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
796	select SERIAL_CORE
797	help
798	  If you have a PIC32, this driver supports the serial ports.
799
800	  Say Y or M to use PIC32 serial ports, otherwise say N. Note that
801	  to use a serial port as a console, this must be included in kernel and
802	  not as a module.
803
804config SERIAL_PIC32_CONSOLE
805	bool "PIC32 serial console support"
806	depends on SERIAL_PIC32=y
807	select SERIAL_CORE_CONSOLE
808	help
809	  If you have a PIC32, this driver supports the putting a console on one
810	  of the serial ports.
811
812	  Say Y to use the PIC32 console, otherwise say N.
813
814config SERIAL_MPC52xx
815	tristate "Freescale MPC52xx/MPC512x family PSC serial support"
816	depends on PPC_MPC52xx || PPC_MPC512x
817	select SERIAL_CORE
818	help
819	  This driver supports MPC52xx and MPC512x PSC serial ports. If you would
820	  like to use them, you must answer Y or M to this option. Note that
821	  for use as console, it must be included in kernel and not as a
822	  module.
823
824config SERIAL_MPC52xx_CONSOLE
825	bool "Console on a Freescale MPC52xx/MPC512x family PSC serial port"
826	depends on SERIAL_MPC52xx=y
827	select SERIAL_CORE_CONSOLE
828	help
829	  Select this options if you'd like to use one of the PSC serial port
830	  of the Freescale MPC52xx family as a console.
831
832config SERIAL_MPC52xx_CONSOLE_BAUD
833	int "Freescale MPC52xx/MPC512x family PSC serial port baud"
834	depends on SERIAL_MPC52xx_CONSOLE=y
835	default "9600"
836	help
837	  Select the MPC52xx console baud rate.
838	  This value is only used if the bootloader doesn't pass in the
839	  console baudrate
840
841config SERIAL_ICOM
842	tristate "IBM Multiport Serial Adapter"
843	depends on PCI
844	depends on PPC_PSERIES || COMPILE_TEST
845	select SERIAL_CORE
846	select FW_LOADER
847	help
848	  This driver is for a family of multiport serial adapters
849	  including 2 port RVX, 2 port internal modem, 4 port internal
850	  modem and a split 1 port RVX and 1 port internal modem.
851
852	  This driver can also be built as a module.  If so, the module
853	  will be called icom.
854
855config SERIAL_TXX9
856	bool "TMPTX39XX/49XX SIO support"
857	depends on HAS_TXX9_SERIAL
858	select SERIAL_CORE
859	default y
860
861config HAS_TXX9_SERIAL
862	bool
863
864config SERIAL_TXX9_NR_UARTS
865	int "Maximum number of TMPTX39XX/49XX SIO ports"
866	depends on SERIAL_TXX9
867	default "6"
868
869config SERIAL_TXX9_CONSOLE
870	bool "TMPTX39XX/49XX SIO Console support"
871	depends on SERIAL_TXX9=y
872	select SERIAL_CORE_CONSOLE
873
874config SERIAL_TXX9_STDSERIAL
875	bool "TX39XX/49XX SIO act as standard serial"
876	depends on !SERIAL_8250 && SERIAL_TXX9
877
878config SERIAL_JSM
879	tristate "Digi International NEO and Classic PCI Support"
880	depends on PCI
881	select SERIAL_CORE
882	help
883	  This is a driver for Digi International's Neo and Classic series
884	  of cards which provide multiple serial ports. You would need
885	  something like this to connect more than two modems to your Linux
886	  box, for instance in order to become a dial-in server. This driver
887	  supports PCI boards only.
888
889	  If you have a card like this, say Y here, otherwise say N.
890
891	  To compile this driver as a module, choose M here: the
892	  module will be called jsm.
893
894config SERIAL_MSM
895	tristate "MSM on-chip serial port support"
896	depends on ARCH_QCOM || COMPILE_TEST
897	select SERIAL_CORE
898
899config SERIAL_MSM_CONSOLE
900	bool "MSM serial console support"
901	depends on SERIAL_MSM=y
902	select SERIAL_CORE_CONSOLE
903	select SERIAL_EARLYCON
904
905config SERIAL_QCOM_GENI
906	tristate "QCOM on-chip GENI based serial port support"
907	depends on ARCH_QCOM || COMPILE_TEST
908	depends on QCOM_GENI_SE
909	select SERIAL_CORE
910
911config SERIAL_QCOM_GENI_CONSOLE
912	bool "QCOM GENI Serial Console support"
913	depends on SERIAL_QCOM_GENI
914	select SERIAL_CORE_CONSOLE
915	select SERIAL_EARLYCON
916	help
917	  Serial console driver for Qualcomm Technologies Inc's GENI based
918	  QUP hardware.
919
920config SERIAL_VT8500
921	bool "VIA VT8500 on-chip serial port support"
922	depends on ARCH_VT8500 || COMPILE_TEST
923	select SERIAL_CORE
924
925config SERIAL_VT8500_CONSOLE
926	bool "VIA VT8500 serial console support"
927	depends on SERIAL_VT8500=y
928	select SERIAL_CORE_CONSOLE
929
930config SERIAL_OMAP
931	tristate "OMAP serial port support"
932	depends on (ARCH_OMAP2PLUS && !SERIAL_8250_OMAP) || COMPILE_TEST
933	select SERIAL_CORE
934	help
935	  If you have a machine based on an Texas Instruments OMAP CPU you
936	  can enable its onboard serial ports by enabling this option.
937
938	  By enabling this option you take advantage of dma feature available
939	  with the omap-serial driver. DMA support can be enabled from platform
940	  data.
941
942config SERIAL_OMAP_CONSOLE
943	bool "Console on OMAP serial port"
944	depends on SERIAL_OMAP=y
945	select SERIAL_CORE_CONSOLE
946	help
947	  Select this option if you would like to use omap serial port as
948	  console.
949
950	  Even if you say Y here, the currently visible virtual console
951	  (/dev/tty0) will still be used as the system console by default, but
952	  you can alter that using a kernel command line option such as
953	  "console=ttyOx". (Try "man bootparam" or see the documentation of
954	  your boot loader about how to pass options to the kernel at
955	  boot time.)
956
957config SERIAL_SIFIVE
958	tristate "SiFive UART support"
959	depends on OF
960	default ARCH_SIFIVE || ARCH_CANAAN
961	select SERIAL_CORE
962	help
963	  Select this option if you are building a kernel for a device that
964	  contains a SiFive UART IP block.  This type of UART is present on
965	  SiFive FU540 SoCs, among others.
966
967config SERIAL_SIFIVE_CONSOLE
968	bool "Console on SiFive UART"
969	depends on SERIAL_SIFIVE=y
970	default ARCH_SIFIVE || ARCH_CANAAN
971	select SERIAL_CORE_CONSOLE
972	select SERIAL_EARLYCON
973	help
974	  Select this option if you would like to use a SiFive UART as the
975	  system console.
976
977	  Even if you say Y here, the currently visible virtual console
978	  (/dev/tty0) will still be used as the system console by default, but
979	  you can alter that using a kernel command line option such as
980	  "console=ttySIFx". (Try "man bootparam" or see the documentation of
981	  your boot loader about how to pass options to the kernel at
982	  boot time.)
983
984config SERIAL_LANTIQ
985	tristate "Lantiq serial driver"
986	depends on (LANTIQ || X86) || COMPILE_TEST
987	select SERIAL_CORE
988	help
989	  Support for UART on Lantiq and Intel SoCs.
990	  To compile this driver as a module, select M here. The
991	  module will be called lantiq.
992
993config SERIAL_LANTIQ_CONSOLE
994	bool "Console on Lantiq UART"
995	depends on SERIAL_LANTIQ=y
996	select SERIAL_CORE_CONSOLE
997	select SERIAL_EARLYCON
998	help
999	  Select this option if you would like to use a Lantiq UART as the
1000	  system console.
1001
1002config SERIAL_QE
1003	tristate "Freescale QUICC Engine serial port support"
1004	depends on QUICC_ENGINE
1005	select SERIAL_CORE
1006	select FW_LOADER
1007	help
1008	  This driver supports the QE serial ports on Freescale embedded
1009	  PowerPC that contain a QUICC Engine.
1010
1011config SERIAL_SCCNXP
1012	tristate "SCCNXP serial port support"
1013	select SERIAL_CORE
1014	help
1015	  This selects support for an advanced UART from NXP (Philips).
1016	  Supported ICs are SCC2681, SCC2691, SCC2692, SC28L91, SC28L92,
1017	  SC28L202, SCC68681 and SCC68692.
1018
1019config SERIAL_SCCNXP_CONSOLE
1020	bool "Console on SCCNXP serial port"
1021	depends on SERIAL_SCCNXP=y
1022	select SERIAL_CORE_CONSOLE
1023	help
1024	  Support for console on SCCNXP serial ports.
1025
1026config SERIAL_SC16IS7XX
1027	tristate "NXP SC16IS7xx UART support"
1028	depends on SPI_MASTER || I2C
1029	select SERIAL_CORE
1030	select SERIAL_SC16IS7XX_SPI if SPI_MASTER
1031	select SERIAL_SC16IS7XX_I2C if I2C
1032	help
1033	  Core driver for NXP SC16IS7xx UARTs.
1034	  Supported ICs are:
1035
1036	    SC16IS740
1037	    SC16IS741
1038	    SC16IS750
1039	    SC16IS752
1040	    SC16IS760
1041	    SC16IS762
1042
1043	  The driver supports both I2C and SPI interfaces.
1044
1045config SERIAL_SC16IS7XX_I2C
1046	tristate
1047	select REGMAP_I2C
1048
1049config SERIAL_SC16IS7XX_SPI
1050	tristate
1051	select REGMAP_SPI
1052
1053config SERIAL_TIMBERDALE
1054	tristate "Support for timberdale UART"
1055	select SERIAL_CORE
1056	depends on X86_32 || COMPILE_TEST
1057	help
1058	Add support for UART controller on timberdale.
1059
1060config SERIAL_BCM63XX
1061	tristate "Broadcom BCM63xx/BCM33xx UART support"
1062	select SERIAL_CORE
1063	depends on ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST
1064	default ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC
1065	help
1066	  This enables the driver for the onchip UART core found on
1067	  the following chipsets:
1068
1069	    BCM33xx (cable modem)
1070	    BCM63xx/BCM63xxx (DSL)
1071	    BCM68xx (PON)
1072	    BCM7xxx (STB) - DOCSIS console
1073
1074config SERIAL_BCM63XX_CONSOLE
1075	bool "Console on BCM63xx serial port"
1076	depends on SERIAL_BCM63XX=y
1077	select SERIAL_CORE_CONSOLE
1078	select SERIAL_EARLYCON
1079	help
1080	  If you have enabled the serial port on the BCM63xx CPU
1081	  you can make it the console by answering Y to this option.
1082
1083config SERIAL_GRLIB_GAISLER_APBUART
1084	tristate "GRLIB APBUART serial support"
1085	depends on OF && SPARC
1086	select SERIAL_CORE
1087	help
1088	Add support for the GRLIB APBUART serial port.
1089
1090config SERIAL_GRLIB_GAISLER_APBUART_CONSOLE
1091	bool "Console on GRLIB APBUART serial port"
1092	depends on SERIAL_GRLIB_GAISLER_APBUART=y
1093	select SERIAL_CORE_CONSOLE
1094	help
1095	Support for running a console on the GRLIB APBUART
1096
1097config SERIAL_ALTERA_JTAGUART
1098	tristate "Altera JTAG UART support"
1099	select SERIAL_CORE
1100	help
1101	  This driver supports the Altera JTAG UART port.
1102
1103config SERIAL_ALTERA_JTAGUART_CONSOLE
1104	bool "Altera JTAG UART console support"
1105	depends on SERIAL_ALTERA_JTAGUART=y
1106	select SERIAL_CORE_CONSOLE
1107	select SERIAL_EARLYCON
1108	help
1109	  Enable a Altera JTAG UART port to be the system console.
1110
1111config SERIAL_ALTERA_JTAGUART_CONSOLE_BYPASS
1112	bool "Bypass output when no connection"
1113	depends on SERIAL_ALTERA_JTAGUART_CONSOLE
1114	select SERIAL_CORE_CONSOLE
1115	help
1116	  Bypass console output and keep going even if there is no
1117	  JTAG terminal connection with the host.
1118
1119config SERIAL_ALTERA_UART
1120	tristate "Altera UART support"
1121	select SERIAL_CORE
1122	help
1123	  This driver supports the Altera softcore UART port.
1124
1125config SERIAL_ALTERA_UART_MAXPORTS
1126	int "Maximum number of Altera UART ports"
1127	depends on SERIAL_ALTERA_UART
1128	default 4
1129	help
1130	  This setting lets you define the maximum number of the Altera
1131	  UART ports. The usual default varies from board to board, and
1132	  this setting is a way of catering for that.
1133
1134config SERIAL_ALTERA_UART_BAUDRATE
1135	int "Default baudrate for Altera UART ports"
1136	depends on SERIAL_ALTERA_UART
1137	default 115200
1138	help
1139	  This setting lets you define what the default baudrate is for the
1140	  Altera UART ports. The usual default varies from board to board,
1141	  and this setting is a way of catering for that.
1142
1143config SERIAL_ALTERA_UART_CONSOLE
1144	bool "Altera UART console support"
1145	depends on SERIAL_ALTERA_UART=y
1146	select SERIAL_CORE_CONSOLE
1147	select SERIAL_EARLYCON
1148	help
1149	  Enable a Altera UART port to be the system console.
1150
1151config SERIAL_PCH_UART
1152	tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) UART"
1153	depends on PCI && (X86_32 || MIPS ||  COMPILE_TEST)
1154	select SERIAL_CORE
1155	help
1156	  This driver is for PCH(Platform controller Hub) UART of Intel EG20T
1157	  which is an IOH(Input/Output Hub) for x86 embedded processor.
1158	  Enabling PCH_DMA, this PCH UART works as DMA mode.
1159
1160	  This driver also can be used for LAPIS Semiconductor IOH(Input/
1161	  Output Hub), ML7213, ML7223 and ML7831.
1162	  ML7213 IOH is for IVI(In-Vehicle Infotainment) use, ML7223 IOH is
1163	  for MP(Media Phone) use and ML7831 IOH is for general purpose use.
1164	  ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
1165	  ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
1166
1167config SERIAL_PCH_UART_CONSOLE
1168	bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
1169	depends on SERIAL_PCH_UART=y
1170	select SERIAL_CORE_CONSOLE
1171	help
1172	  Say Y here if you wish to use the PCH UART as the system console
1173	  (the system  console is the device which receives all kernel messages and
1174	  warnings and which allows logins in single user mode).
1175
1176config SERIAL_MXS_AUART
1177	tristate "MXS AUART support"
1178	depends on ARCH_MXS || MACH_ASM9260 || COMPILE_TEST
1179	select SERIAL_CORE
1180	select SERIAL_MCTRL_GPIO if GPIOLIB
1181	help
1182	  This driver supports the MXS and Alphascale ASM9260 Application
1183	  UART (AUART) port.
1184
1185config SERIAL_MXS_AUART_CONSOLE
1186	bool "MXS AUART console support"
1187	depends on SERIAL_MXS_AUART=y
1188	select SERIAL_CORE_CONSOLE
1189	help
1190	  Enable a MXS AUART port to be the system console.
1191
1192config SERIAL_XILINX_PS_UART
1193	tristate "Cadence (Xilinx Zynq) UART support"
1194	depends on OF
1195	select SERIAL_CORE
1196	help
1197	  This driver supports the Cadence UART. It is found e.g. in Xilinx
1198	  Zynq.
1199
1200config SERIAL_XILINX_PS_UART_CONSOLE
1201	bool "Cadence UART console support"
1202	depends on SERIAL_XILINX_PS_UART=y
1203	select SERIAL_CORE_CONSOLE
1204	select SERIAL_EARLYCON
1205	help
1206	  Enable a Cadence UART port to be the system console.
1207
1208config SERIAL_AR933X
1209	tristate "AR933X serial port support"
1210	depends on (HAVE_CLK && ATH79) || (MIPS && COMPILE_TEST)
1211	select SERIAL_CORE
1212	select SERIAL_MCTRL_GPIO if GPIOLIB
1213	help
1214	  If you have an Atheros AR933X SOC based board and want to use the
1215	  built-in UART of the SoC, say Y to this option.
1216
1217	  To compile this driver as a module, choose M here: the
1218	  module will be called ar933x_uart.
1219
1220config SERIAL_AR933X_CONSOLE
1221	bool "Console on AR933X serial port"
1222	depends on SERIAL_AR933X=y
1223	select SERIAL_CORE_CONSOLE
1224	help
1225	  Enable a built-in UART port of the AR933X to be the system console.
1226
1227config SERIAL_AR933X_NR_UARTS
1228	int "Maximum number of AR933X serial ports"
1229	depends on SERIAL_AR933X
1230	default "2"
1231	help
1232	  Set this to the number of serial ports you want the driver
1233	  to support.
1234
1235config SERIAL_MPS2_UART_CONSOLE
1236	bool "MPS2 UART console support"
1237	depends on SERIAL_MPS2_UART
1238	select SERIAL_CORE_CONSOLE
1239	select SERIAL_EARLYCON
1240
1241config SERIAL_MPS2_UART
1242	bool "MPS2 UART port"
1243	depends on ARCH_MPS2 || COMPILE_TEST
1244	select SERIAL_CORE
1245	help
1246	  This driver support the UART ports on ARM MPS2.
1247
1248config SERIAL_ARC
1249	tristate "ARC UART driver support"
1250	select SERIAL_CORE
1251	help
1252	  Driver for on-chip UART for ARC(Synopsys) for the legacy
1253	  FPGA Boards (ML50x/ARCAngel4)
1254
1255config SERIAL_ARC_CONSOLE
1256	bool "Console on ARC UART"
1257	depends on SERIAL_ARC=y
1258	select SERIAL_CORE_CONSOLE
1259	select SERIAL_EARLYCON
1260	help
1261	  Enable system Console on ARC UART
1262
1263config SERIAL_ARC_NR_PORTS
1264	int "Number of ARC UART ports"
1265	depends on SERIAL_ARC
1266	range 1 3
1267	default "1"
1268	help
1269	  Set this to the number of serial ports you want the driver
1270	  to support.
1271
1272config SERIAL_RP2
1273	tristate "Comtrol RocketPort EXPRESS/INFINITY support"
1274	depends on PCI
1275	select SERIAL_CORE
1276	help
1277	  This driver supports the Comtrol RocketPort EXPRESS and
1278	  RocketPort INFINITY families of PCI/PCIe multiport serial adapters.
1279	  These adapters use a "RocketPort 2" ASIC that is not compatible
1280	  with the original RocketPort driver (CONFIG_ROCKETPORT).
1281
1282	  To compile this driver as a module, choose M here: the
1283	  module will be called rp2.
1284
1285	  If you want to compile this driver into the kernel, say Y here.  If
1286	  you don't have a suitable RocketPort card installed, say N.
1287
1288config SERIAL_RP2_NR_UARTS
1289	int "Maximum number of RocketPort EXPRESS/INFINITY ports"
1290	depends on SERIAL_RP2
1291	default "32"
1292	help
1293	  If multiple cards are present, the default limit of 32 ports may
1294	  need to be increased.
1295
1296config SERIAL_FSL_LPUART
1297	tristate "Freescale lpuart serial port support"
1298	depends on HAS_DMA
1299	select SERIAL_CORE
1300	help
1301	  Support for the on-chip lpuart on some Freescale SOCs.
1302
1303config SERIAL_FSL_LPUART_CONSOLE
1304	bool "Console on Freescale lpuart serial port"
1305	depends on SERIAL_FSL_LPUART=y
1306	select SERIAL_CORE_CONSOLE
1307	select SERIAL_EARLYCON
1308	help
1309	  If you have enabled the lpuart serial port on the Freescale SoCs,
1310	  you can make it the console by answering Y to this option.
1311
1312config SERIAL_FSL_LINFLEXUART
1313	tristate "Freescale LINFlexD UART serial port support"
1314	depends on PRINTK
1315	select SERIAL_CORE
1316	help
1317	  Support for the on-chip LINFlexD UART on some Freescale SOCs.
1318
1319config SERIAL_FSL_LINFLEXUART_CONSOLE
1320	bool "Console on Freescale LINFlexD UART serial port"
1321	depends on SERIAL_FSL_LINFLEXUART=y
1322	select SERIAL_CORE_CONSOLE
1323	select SERIAL_EARLYCON
1324	help
1325	  If you have enabled the LINFlexD UART serial port on the Freescale
1326	  SoCs, you can make it the console by answering Y to this option.
1327
1328config SERIAL_CONEXANT_DIGICOLOR
1329	tristate "Conexant Digicolor CX92xxx USART serial port support"
1330	depends on OF
1331	select SERIAL_CORE
1332	help
1333	  Support for the on-chip USART on Conexant Digicolor SoCs.
1334
1335config SERIAL_CONEXANT_DIGICOLOR_CONSOLE
1336	bool "Console on Conexant Digicolor serial port"
1337	depends on SERIAL_CONEXANT_DIGICOLOR=y
1338	select SERIAL_CORE_CONSOLE
1339	help
1340	  If you have enabled the USART serial port on Conexant Digicolor
1341	  SoCs, you can make it the console by answering Y to this option.
1342
1343config SERIAL_ST_ASC
1344	tristate "ST ASC serial port support"
1345	select SERIAL_CORE
1346	depends on ARM || COMPILE_TEST
1347	help
1348	  This driver is for the on-chip Asynchronous Serial Controller on
1349	  STMicroelectronics STi SoCs.
1350	  ASC is embedded in ST COMMS IP block. It supports Rx & Tx functionality.
1351	  It support all industry standard baud rates.
1352
1353	  If unsure, say N.
1354
1355config SERIAL_ST_ASC_CONSOLE
1356	bool "Support for console on ST ASC"
1357	depends on SERIAL_ST_ASC=y
1358	select SERIAL_CORE_CONSOLE
1359
1360config SERIAL_MEN_Z135
1361	tristate "MEN 16z135 Support"
1362	select SERIAL_CORE
1363	depends on MCB
1364	help
1365	  Say yes here to enable support for the MEN 16z135 High Speed UART IP-Core
1366	  on a MCB carrier.
1367
1368	  This driver can also be build as a module. If so, the module will be called
1369	  men_z135_uart.ko
1370
1371config SERIAL_SPRD
1372	tristate "Support for Spreadtrum serial"
1373	select SERIAL_CORE
1374	depends on COMMON_CLK
1375	help
1376	  This enables the driver for the Spreadtrum's serial.
1377
1378config SERIAL_SPRD_CONSOLE
1379	bool "Spreadtrum UART console support"
1380	depends on SERIAL_SPRD=y
1381	select SERIAL_CORE_CONSOLE
1382	select SERIAL_EARLYCON
1383	help
1384	  Support for early debug console using Spreadtrum's serial. This enables
1385	  the console before standard serial driver is probed. This is enabled
1386	  with "earlycon" on the kernel command line. The console is
1387	  enabled when early_param is processed.
1388
1389config SERIAL_STM32
1390	tristate "STMicroelectronics STM32 serial port support"
1391	select SERIAL_CORE
1392	depends on ARCH_STM32 || COMPILE_TEST
1393	select SERIAL_MCTRL_GPIO if GPIOLIB
1394	help
1395	  This driver is for the on-chip Serial Controller on
1396	  STMicroelectronics STM32 MCUs.
1397	  USART supports Rx & Tx functionality.
1398	  It support all industry standard baud rates.
1399
1400	  If unsure, say N.
1401
1402config SERIAL_STM32_CONSOLE
1403	bool "Support for console on STM32"
1404	depends on SERIAL_STM32=y
1405	select SERIAL_CORE_CONSOLE
1406	select SERIAL_EARLYCON
1407
1408config SERIAL_MVEBU_UART
1409	bool "Marvell EBU serial port support"
1410	depends on ARCH_MVEBU || COMPILE_TEST
1411	depends on COMMON_CLK
1412	select SERIAL_CORE
1413	help
1414	  This driver is for Marvell EBU SoC's UART. If you have a machine
1415	  based on the Armada-3700 SoC and wish to use the on-board serial
1416	  port,
1417	  say 'Y' here.
1418	  Otherwise, say 'N'.
1419
1420config SERIAL_MVEBU_CONSOLE
1421	bool "Console on Marvell EBU serial port"
1422	depends on SERIAL_MVEBU_UART
1423	select SERIAL_CORE_CONSOLE
1424	select SERIAL_EARLYCON
1425	default y
1426	help
1427	  Say 'Y' here if you wish to use Armada-3700 UART as the system console.
1428	  (the system console is the device which receives all kernel messages
1429	  and warnings and which allows logins in single user mode)
1430	  Otherwise, say 'N'.
1431
1432config SERIAL_OWL
1433	tristate "Actions Semi Owl serial port support"
1434	depends on ARCH_ACTIONS || COMPILE_TEST
1435	select SERIAL_CORE
1436	help
1437	  This driver is for Actions Semiconductor S500/S900 SoC's UART.
1438	  Say 'Y' here if you wish to use the on-board serial port.
1439	  Otherwise, say 'N'.
1440
1441config SERIAL_OWL_CONSOLE
1442	bool "Console on Actions Semi Owl serial port"
1443	depends on SERIAL_OWL=y
1444	select SERIAL_CORE_CONSOLE
1445	select SERIAL_EARLYCON
1446	default y
1447	help
1448	  Say 'Y' here if you wish to use Actions Semiconductor S500/S900 UART
1449	  as the system console.
1450
1451config SERIAL_RDA
1452	bool "RDA Micro serial port support"
1453	depends on ARCH_RDA || COMPILE_TEST
1454	select SERIAL_CORE
1455	help
1456	  This driver is for RDA8810PL SoC's UART.
1457	  Say 'Y' here if you wish to use the on-board serial port.
1458	  Otherwise, say 'N'.
1459
1460config SERIAL_RDA_CONSOLE
1461	bool "Console on RDA Micro serial port"
1462	depends on SERIAL_RDA=y
1463	select SERIAL_CORE_CONSOLE
1464	select SERIAL_EARLYCON
1465	default y
1466	help
1467	  Say 'Y' here if you wish to use the RDA8810PL UART as the system
1468	  console. Only earlycon is implemented currently.
1469
1470config SERIAL_MILBEAUT_USIO
1471	tristate "Milbeaut USIO/UART serial port support"
1472	depends on ARCH_MILBEAUT || (COMPILE_TEST && OF)
1473	default ARCH_MILBEAUT
1474	select SERIAL_CORE
1475	help
1476	  This selects the USIO/UART IP found in Socionext Milbeaut SoCs.
1477
1478config SERIAL_MILBEAUT_USIO_PORTS
1479	int "Maximum number of CSIO/UART ports (1-8)"
1480	range 1 8
1481	depends on SERIAL_MILBEAUT_USIO
1482	default "4"
1483
1484config SERIAL_MILBEAUT_USIO_CONSOLE
1485	bool "Support for console on MILBEAUT USIO/UART serial port"
1486	depends on SERIAL_MILBEAUT_USIO=y
1487	default y
1488	select SERIAL_CORE_CONSOLE
1489	select SERIAL_EARLYCON
1490	help
1491	  Say 'Y' here if you wish to use a USIO/UART of Socionext Milbeaut
1492	  SoCs as the system console (the system console is the device which
1493	  receives all kernel messages and warnings and which allows logins in
1494	  single user mode).
1495
1496config SERIAL_LITEUART
1497	tristate "LiteUART serial port support"
1498	depends on HAS_IOMEM
1499	depends on OF
1500	depends on LITEX || COMPILE_TEST
1501	select SERIAL_CORE
1502	help
1503	  This driver is for the FPGA-based LiteUART serial controller from LiteX
1504	  SoC builder.
1505
1506	  Say 'Y' or 'M' here if you wish to use the LiteUART serial controller.
1507	  Otherwise, say 'N'.
1508
1509config SERIAL_LITEUART_MAX_PORTS
1510	int "Maximum number of LiteUART ports"
1511	depends on SERIAL_LITEUART
1512	default "1"
1513	help
1514	  Set this to the maximum number of serial ports you want the driver
1515	  to support.
1516
1517config SERIAL_LITEUART_CONSOLE
1518	bool "LiteUART serial port console support"
1519	depends on SERIAL_LITEUART=y
1520	select SERIAL_CORE_CONSOLE
1521	select SERIAL_EARLYCON
1522	help
1523	  Say 'Y' or 'M' here if you wish to use the FPGA-based LiteUART serial
1524	  controller from LiteX SoC builder as the system console
1525	  (the system console is the device which receives all kernel messages
1526	  and warnings and which allows logins in single user mode).
1527	  Otherwise, say 'N'.
1528
1529config SERIAL_SUNPLUS
1530	tristate "Sunplus UART support"
1531	depends on ARCH_SUNPLUS || COMPILE_TEST
1532	select SERIAL_CORE
1533	help
1534	  Select this option if you would like to use Sunplus serial port on
1535	  Sunplus SoC SP7021.
1536	  If you enable this option, Sunplus serial ports in the system will
1537	  be registered as ttySUPx.
1538	  This driver can also be built as a module. If so, the module will be
1539	  called sunplus-uart.
1540
1541config SERIAL_SUNPLUS_CONSOLE
1542	bool "Console on Sunplus UART"
1543	depends on SERIAL_SUNPLUS
1544	select SERIAL_CORE_CONSOLE
1545	select SERIAL_EARLYCON
1546	help
1547	  Select this option if you would like to use a Sunplus UART as the
1548	  system console.
1549	  Even if you say Y here, the currently visible virtual console
1550	  (/dev/tty0) will still be used as the system console by default, but
1551	  you can alter that using a kernel command line option such as
1552	  "console=ttySUPx".
1553
1554config SERIAL_NUVOTON_MA35D1
1555	tristate "Nuvoton MA35D1 family UART support"
1556	depends on ARCH_MA35 || COMPILE_TEST
1557	select SERIAL_CORE
1558	help
1559	  This driver supports Nuvoton MA35D1 family UART ports. If you would
1560	  like to use them, you must answer Y or M to this option. Note that
1561	  for use as console, it must be included in kernel and not as a
1562	  module. If you enable this option, Ma35D1 serial ports in the system
1563	  will be registered as ttyNVTx.
1564
1565config SERIAL_NUVOTON_MA35D1_CONSOLE
1566	bool "Console on a Nuvotn MA35D1 family UART port"
1567	depends on SERIAL_NUVOTON_MA35D1=y
1568	select SERIAL_CORE_CONSOLE
1569	help
1570	  Select this options if you'd like to use the UART port0 of the
1571	  Nuvoton MA35D1 family as a console.
1572	  Even if you say Y here, the currently visible virtual console
1573	  (/dev/tty0) will still be used as the system console by default,
1574	  but you can alter that using a kernel command line option such as
1575	  "console=ttyNVTx".
1576
1577config SERIAL_ESP32
1578	tristate "Espressif ESP32 UART support"
1579	depends on XTENSA_PLATFORM_ESP32 || (COMPILE_TEST && OF)
1580	select SERIAL_CORE
1581	select SERIAL_CORE_CONSOLE
1582	select SERIAL_EARLYCON
1583	help
1584	  Driver for the UART controllers of the Espressif ESP32xx SoCs.
1585	  When earlycon option is enabled the following kernel command line
1586	  snippets may be used:
1587	    earlycon=esp32s3uart,mmio32,0x60000000,115200n8,40000000
1588	    earlycon=esp32uart,mmio32,0x3ff40000,115200n8
1589
1590config SERIAL_ESP32_ACM
1591	tristate "Espressif ESP32 USB ACM gadget support"
1592	depends on XTENSA_PLATFORM_ESP32 || (COMPILE_TEST && OF)
1593	select SERIAL_CORE
1594	select SERIAL_CORE_CONSOLE
1595	select SERIAL_EARLYCON
1596	help
1597	  Driver for the CDC ACM gadget controller of the Espressif ESP32S3
1598	  SoCs that share separate USB controller with the JTAG adapter.
1599	  When earlycon option is enabled the following kernel command line
1600	  snippet may be used:
1601	    earlycon=esp32s3acm,mmio32,0x60038000
1602
1603endmenu
1604
1605config SERIAL_MCTRL_GPIO
1606	tristate
1607